Pro

Filename association and instant console availability

Pro

Multi-rename tool

Pro

Custom commands can be added to the menu easily

Cons

Con

KDE dependencies

If you don't use KDE, you'll be forced to install quite a large amount of KDE libraries.

Con

Interface can be overwhelming

Con

New releases are infrequent

It can be seen in https://quickgit.kde.org/?p=krusader.git that maintenance work is done in a continous fashion, but no new releases are provided.Even though it is perhaps the more feature-rich file manager.